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iOS Build a Self-Destructing Message iPhone App Relating Users in Parse.com Adding Friends by Tapping on a Table View Cell

Posted by Chirag jhumkhawala
Chirag jhumkhawala
1,212 Points

When I run the code from this video i get blank space in the LOG. where NSLog is supposed to post an error with username

import "EditFriendsTableViewController.h"

@interface EditFriendsTableViewController ()

@end

@implementation EditFriendsTableViewController

  • (void)viewDidLoad { [super viewDidLoad];

    PFQuery *query = [PFQuery queryWithClassName:@"User"]; [query orderByAscending:@"username"]; [query findObjectsInBackgroundWithBlock:^(NSArray *objects,NSError *error){

    if(error){

    NSLog(@"Error:%@ %@",error,[error userInfo]);
}
else
{
    self.allUsers = objects;
    NSLog(@"%@",self.allUsers);
    [self.tableView reloadData];
}

    }];

    self.currentUser =[PFUser currentUser];

}

  • (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. }

pragma mark - Table view data source

  • (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { // Return the number of sections. return 1; }

  • (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { // Return the number of rows in the section. return [self.allUsers count];

}

  • (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath];

    // Configure the cell... PFUser *user = [self.allUsers objectAtIndex:indexPath.row]; cell.textLabel.text = user.username;

    return cell; }

-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath{

UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
cell.accessoryType = UITableViewCellAccessoryCheckmark;
PFRelation *friendsrelation = [self.currentUser relationForKey:@"friendsRelation"];
PFUser *user = [self.allUsers objectAtIndex:indexPath.row];

[friendsrelation addObject: user];
[self.currentUser saveInBackgroundWithBlock:^(BOOL succeeded,NSError *error){

    if(error){

        NSLog(@"Error :%@ %@", error, [error userInfo]);
    }
}];

}